package com.practice.StringUtilsDemo;

import org.apache.commons.lang3.StringUtils;

/**
 * Created by IntelliJ IDEA2022.3.2
 * @Author: Tenghw
 * @Date: 2023/03/03  16:45
 * @Description:
 */public class Demo2 {
    public static void main0(String[] args) {
        char c1='a';
        Character c2='b';
        CharSequence c3="c";
        CharSequence c4="dsvju";
    }
    public static void main(String[] args) {
        System.out.println(StringUtils.containsOnly("abab", "abc"));//true
    }
}
